Summary (tl;dr)

Milly Alcock is trending as DC Studios has released a new poster and a teaser trailer for the upcoming "Supergirl" movie, featuring Alcock in the titular role, generating significant buzz among fans ahead of the full trailer release.

Essential Background

Milly Alcock is an Australian actress widely recognized for her breakthrough performance as young Princess Rhaenyra Targaryen in the HBO series "House of the Dragon". In January 2024, she was officially cast as Kara Zor-El/Supergirl for the new DC Universe (DCU). This standalone "Supergirl" film, titled "Supergirl: Woman of Tomorrow," is based on the critically acclaimed comic book miniseries by Tom King and Bilquis Evely, forming a key part of the DCU's initial slate, "Chapter One: Gods and Monsters".

The Full Story

On December 7, 2025, DC Studios co-CEO James Gunn unveiled a brief teaser for the "Supergirl" movie, showcasing Milly Alcock as Kara Zor-El, and announced that the complete trailer would be released on Thursday, December 11, 2025. This teaser was accompanied by the debut of a new film poster, which features Alcock's Supergirl and the tagline, "Truth. Justice. Whatever.". These releases mark the first substantial visual previews of Alcock in the iconic superhero role, fueling online discussion and causing both Milly Alcock and "Supergirl" to trend. The movie is slated to premiere on June 26, 2026.

Why It Matters

The surge in interest surrounding Milly Alcock and "Supergirl" highlights the anticipation for the new DCU and Alcock's portrayal of the character. DC Studios co-CEO James Gunn has lauded Alcock's casting, calling it potentially "the best bit of casting I've done in my entire life". This iteration of Supergirl is intended to be a "more hardcore" and "total mess" version, diverging from previous portrayals by exploring a more challenging background compared to her cousin Superman. This fresh take, rooted in the acclaimed "Supergirl: Woman of Tomorrow" comic series, has resonated with fans and signals a distinct narrative direction for the character within the DCU.

Geographic Location

• Warner Bros. Studios Leavesden, Watford, Hertfordshire, England, United Kingdom (filming of Supergirl)
• London, England, United Kingdom (filming of Supergirl)
• Scotland, United Kingdom (filming of Supergirl)